package experiment1_bag;
import java.util.Scanner;
public class runnian {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入一个年份：");
        int year = scanner.nextInt();
        if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) {
            System.out.println(year + " 年是闰年。");
        } else {
            System.out.println(year + " 年不是闰年。");
        }
        scanner.close();
    }
}
